function onNetChange(){
	var net = plus.networkinfo.getCurrentType();
	switch (net){
		case plus.networkinfo.CONNECTION_ETHERNET:
		case plus.networkinfo.CONNECTION_WIFI:
		
		break; 
		case plus.networkinfo.CONNECTION_CELL2G:
		case plus.networkinfo.CONNECTION_CELL3G:
		case plus.networkinfo.CONNECTION_CELL4G:
		mui.toast('正在使用移动数据网络')
		break; 
		default:
		mui.toast('请检查您的网络连接')
		break;
	}
}